FROM python:3.8-slim
ENV PYTHONUNBUFFERED 1

RUN python -m venv /opt/venv
ENV PATH="/opt/venv/bin:$PATH"

RUN mkdir /code
WORKDIR /code
COPY setup.py /code/
COPY requirements.txt /code/

RUN buildDeps='gcc build-essential' \
    && apt update \
    && apt install -y --no-install-recommends $buildDeps \
    && rm -rf /var/lib/apt/lists/* \
    && pip install -r requirements.txt \
    && apt purge -y --auto-remove $buildDeps \
    && rm -rf /var/lib/apt/lists/* \
    && rm -rf /root/.cache

COPY . /code/

EXPOSE 8000